Messing's spokesperson has now clarified that the couple's "relationship simply changed over time" and they remain on cordial terms.

The rep added to Us Weekly: "In the short term they plan on continuing to live together with their son, then gradually transition into a new living situation. They have no immediate plans for divorce."

Messing and Zelman met as graduate students at New York University in 1990, but waited ten years to tie the knot.